Clean STL for 3D simulator

mesh_decimation.bash

#!/bin/bash
# Delete 80% of meshes
# you need to install meshlab before :
# -> sudo apt-get install meshlab on Debian
# -> brew install meshlab on OSX

for f in `ls *.STL`; do
    echo $f
    meshlabserver -i "$f" -s script.mlx -o "$f"
done

script.mlx

<!DOCTYPE FilterScript>
<FilterScript>
 <filter name="Snap Mismatched Borders">
  <Param type="RichFloat" value="0.01" name="EdgeDistRatio"/>
  <Param type="RichBool" value="true" name="UnifyVertices"/>
 </filter>
 <filter name="Merge Close Vertices">
  <Param type="RichAbsPerc" value="0.000250233" min="0" name="Threshold" max="0.000521319"/>
 </filter>
 <filter name="Quadric Edge Collapse Decimation">
  <Param type="RichInt" value="0" name="TargetFaceNum"/>
  <Param type="RichFloat" value="0.2" name="TargetPerc"/>
  <Param type="RichFloat" value="0.3" name="QualityThr"/>
  <Param type="RichBool" value="false" name="PreserveBoundary"/>
  <Param type="RichFloat" value="1" name="BoundaryWeight"/>
  <Param type="RichBool" value="true" name="PreserveNormal"/>
  <Param type="RichBool" value="true" name="PreserveTopology"/>
  <Param type="RichBool" value="true" name="OptimalPlacement"/>
  <Param type="RichBool" value="true" name="PlanarQuadric"/>
  <Param type="RichBool" value="false" name="QualityWeight"/>
  <Param type="RichBool" value="true" name="AutoClean"/>
  <Param type="RichBool" value="false" name="Selected"/>
 </filter>
</FilterScript>

To use it:

wget https://gist.githubusercontent.com/show0k/bd9481d2e221d203aa5b/raw/1f8cac11cd7c1c8c4f20f6364cd459f8d4226c3f/script.mlx
wget https://gist.githubusercontent.com/show0k/bd9481d2e221d203aa5b/raw/1f8cac11cd7c1c8c4f20f6364cd459f8d4226c3f/mesh_decimation.bash
bash mesh_decimation.bash